C131121333133313233213331333133313331312111133133313331333133313121111121322331   >>    C13112133313331323321333133313331333131211113313331333133313331312111112132233   <<    C131121333133313233213331333133313331312111133133313331333133313121111121322333   >>      C131121333133313233213331333133313331312111133133313331333133313121111121322332   >>